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Posted
The sound you hear when the wheels drop is the hydraulics........ :o

Not likely. It is more likely to be the wind turbulence caused by the movement of the landing gear as it moves into position. The movement of the gear blocks the path the air was taking and causes it to whirl and swirl about. Once the landing gear is fully down the air can resume a smooth (and less noisy) flow. The hydraulic noise is barely noticeable to the passengers on a commercial aircraft due to the soundproofing on the plane. And you would hear the noise again as the spoilers were deployed a few minutes later if it was the hydraulics.

i think its the flaps that go up on the wings,are they air brakes?

  • 2 weeks later...
Posted
i think its the flaps that go up on the wings,are they air brakes?

The flaps go down and back from the trailing edge of the wing, essentially maker the wing bigger (for more lift at low airspeed, aka landing). The airbrakes/spoilers are on top of the wing, and go up to block the air and slow the plane. You definitely hear the flaps come down, but not the spoilers go up. The flaps coming down have a unique sort of sound, that is not like the landing gear coming down sound.

Posted
1: If you are facing the mirror, which side is the soap dispenser in the toilets at the original branch of Subway/Coffee World in Nana?

LEFT

2: What is the name of the hotel informally known as the DTAC tower?

3: Name the three different types of Oishi outlet.

RAMEN, BUFFET AND EXPRESS

4: What does 'Dook-a-thaa' mean?

SOFT TOY

5: Which bar, named after a metal, opened in Soi 22 opened last May?

TITANIUM

6: What is the former name of Thailand Connect?

BAHT & SOLD

7: Where is MINT club?

SAMUI

8: How many turn-off's does the Chalong circle in Phuket have?

FIVE

9: Which Asian country when spoken in Thai, sounds like a pair of denim trousers or a womans name? 

CHINA (CHEEN)

10: Which BTS station would you alight from to visit Bummungrad hospital?

PLOEN CHIT

11: What is the unique name of the restaurant down soi 12?

CABBAGES & CONDOMS

12: Name the first beach on the main Ko Samet trail.

13: 7pm in BKK - what is the time in Nadi?

12AM

14: How many high pitched beeps are there before the skytrain doors shut?

TEN

15: Midnight Bar is in what area?

COWBOY

16: President Airlines fly mainly from BKK to where?

CAMBODIA

17: Describe Thailand's original flag.

RED WITH WHITE ELEPHANT

18: What is the name of the almost completed shopping mall visible from Siam BTS?

SIAM PARAGON

19: What is the price of a small Heiniken in the Morning/Night bar?

BT 90

20: What is the unique feature in the bar known as Carnival?

MECHANICAL BULL

21: What is Hin Tai?

AYERS COCK - LAMAI, SAMUI.

22: What unique feature is found on the far left in the gents toilets in Gullivers soi 5?

VOMIT BASIN

23: Was it Mirinda orangade, Thai Airways or Big Chilli magazine who had a makeover this year?

THAI AIRWAYS

24: On which Phuket road would you find The Green Man?

25: What stone, water emitting mammals would you see outside the Hua Hin Hilton?

ELEPHANTS

26: Suphanburi has one, there's one just outside Chaweng and there's one right at the very end of the east side of the Sukhumvit line...  One what?

TESCO LOTUS

27: What does 'Kaosan' (rd) mean?

RAW/DRY RICE ROAD

28: What is the Thai word for tweezers?

'NAEP'

29: Which Thai politician is famous for his tache?

CHEWIT

30: When a jumbo comes in to land, what's that whooshing sound you hear for a few seconds as the wheels drop?  ...I always thought it was the wind resistance against them but the noise stops after a few seconds so perhaps it's the wind on the wings and the noise stops because, ...well I don't know this one so I've thrown it in.

(UNANSWERED UNKNOWN)

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